Answer:
2x= 3x-7
-x=-7
x=7
so, the first option
Step-by-step explanation:
R = -2 :) hope this helps
Answer:
90
Step-by-step explanation:
Its 630/7
20+0.15x = 35+0.10x
0.15x=15+0.10x
0.05x=15
x= 15/0.05
x= 300minutes
check:
300*.015 = 45+20=65
300*0.10 = 30 + 35 = 65
they equal
so number of minutes would be 300